The statements and equations below show various ways of defining average variable cost, marginal cost, and average total cost. below, tc is used to abbreviate total cost, vc is used to abbreviate variable cost, and q is used to abbreviate quantity. classify each statement or equation according to whether it describes average variable cost, marginal cost, or average (total) cost.

average variable cost marginal cost average (total) cost
the amount by which total cost increases when an additional unit is produced
total cost divided by quantity of output
change in the total cost divided by change in output
vc / q
the sum of all costs that change as output changes divided by the number of units produced.

tc / q
δtc/δq

Salvador county issued $25 million of 5% demand bonds for construction of a county maintenance building. the county has no take-out agreement related to the bonds. it estimates that 20% of the bonds would be demanded (called) by the buyers if interest rates increased at least 1%. at year-end rates on comparable debt were 7%. how should these demand bonds be reported in the government-wide financial statements at year-end? a) $25 million in the long-term liability section of the governmental activities column. b) $5 million in the current liability section of the governmental activities column and $20 million in the long-term liabilities section of the governmental activities column. c) $5 million in the governmental activities column and $20 million would be reported in the schedule of changes in long-term debt obligations. d) $25 million in the current liability section of the governmental activities column

Your uncle borrows $53,000 from the bank at 11 percent interest over the nine-year life of the loan. use appendix d for an approximate answer but calculate your final answer using the formula and financial calculator methods. what equal annual payments must be made to discharge the loan, plus pay the bank its required rate of interest

Which external factor has enabled addition of special effects in advertisements and tracking of responses of customers over websites?